Pasteurizing apparatus.



'P. GETTELMAN.

PASTEURIZING APPARATUS. APPLICATION FILED MAR.17, 1913.

1,085,901. Patented Feb. 3, 1914.

'3 BEEETSS 1.

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F. GETTELMAN.

PASTEURIZING APPARATUS.

APPLICATION FILED MAR. 17 1913,

1,085,901. Patented Feb. 3, 1914.

3 SHEETS'SHEET 2.

N A A V F. GETTELMAN.

PASTEURIZING APPARATUS.

APPLICATION FILED MAR.17, 1913.

1,085,901 Patented Feb. 3, 1914* 3 SHEETS-SHEET 3.

FREDERICK GETTELMAN, 0F MILWAUKEE, WISCONSIN.

PASTEURIZING APPARATUS.

To all whom it may concern:

Be it known that I, FREDERICK GETTEL- MAN, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of WVisconsin, have invented certain new and useful Improvements in Pasteurizing Apparatus; and I do hereby declare that the following is a full, clear,

and exact description thereof.

My invention refers to pasteurizers, its object being to provide a simple, economical, effective and compact machine of the above mentioned character wherein a maximum pasteurizing capacity with minimum expenditure of labor will result, the said ma. chine being capable of control by a single operator. In brief, the construction and arrangement is such that, after an initial operation, a series of tiers of separate tray units containing the product in the several stages of pasteurization are fed step by step over a series of pasteurizing vats, whereby.

the contents of one tier of the tray units with each movement is immersed, pasteurized and discharged. In the step by step process the several tiers of trays are simultaneously submerged into the vats through the medium of an elevator and after a predetermined interval of time the entire series are raised from the vats and moved forward one step, over the mouth of the succeeding vats, and so on until the pasteurization is completed, it being evident that with each elevation of the trays from the vats one tier is discharged completely pasteurized and a tier of trays containing raw material is supplied at the feed end of the machine through the reciprocative action of a conveyer, movements of which are correlated with those of the ele- "ator.

ith the above objects in view the invention consists in certain peculiarities of construction and combination of parts as set forth hereinafter with reference to the accompanying drawings and subsequently claimed.

In the drawings Figure 1 represents a side elevation with parts broken away and parts in section of a pasteurizing apparatus embodying the features of my invention; Fig. 2, a sectional plan view of the same with parts broken away, the section being indicated by line 22 of Fig. l, and Fig. 3, an end elevation of the apparatus with parts broken away and in section, the view being Specification of Letters Patent.

Application filed March 17, 1913.

Patented Feb. 3,1914.

Serial No. 754,796.

taken looking toward the discharge end of the machine.

Referring by characters to the drawings, 1

represents a tank that is divided by trans.

verse partition walls 2 and 2 to form separate vats A, B, and C, and, for example, the first vat constitutes a pre-heating bath, the same containing water at approximately 35. The second vat contains water at 45 to 50 and constitutes the pasteurizing vat, while the third vat G contains water at approximately 15 and constitutes the cooling vat. The pre-heating vat A and pasteurizing vat B are each provided with valve-controlled pipes 4 for supplying water, the said vats being also provided with valve-controlled steam supply pipes 4, whereby the temperature of the water is maintained at a predetermined degree. The coolingrvat C is provided with a valve-controlled water supply pipe 4: andowing to the fact that the temperature of the water .in said'vat is maintained at approximately 15 the water supply thereto is delivered at the desired temperature through the pipe, the flow being continuous in order to maintain this low temperature. Each vat is provided with an overflow pipe 3 that extends therein and terminates at a point to maintain the desired water level.

Projecting rearwardlyfrom the feed end of the tank 1 is a receiving table 5 and from the discharge end of said tank a similar delivery table 6 is extended. The receiving and delivery tables are provided with a transverse series of rollers 7 7, respectively, the same serving as supports for the bottom of one or more trays D, a series of which are in practice stacked one upon the other to form tiers of separable units for the reception of bottles E or analogous receptacles containing the product to be pasteurized. In practice the heads of the lower bottles serve as supports for the succeeding bottle tray, whereby several of such trays may be stacked one upon the other as shown, the bottom or lower tray being supported by the table rollers upon a slightly higher plane than the top edges of the series of partition walls to thus permit the tier of tray units with their contents to be carried forward and alined over the several vats of the serles.

Secured to the upper edge of the partition walls 2 and 2' are brackets having alined journal studs 8, upon which studs are loosely mounted conveyer rollers 9, the same being upon a plane common to the table rollers 7, 7, referred to. These journal studs 8 also carry guide sheaves 9 for the support of a reciprocative conveyer, which conveyer is in the form of a skeleton frame having side-bars 10 that are in sliding engagement with the guide-sheaves and the series of receiving table rollers 7, the engagement with the latter rollers being effected when said conveyer is moved into its extreme rearward position. The side-bars of the conveyer frame are of approximately the same length as the tank and are connected at their ends by transverse bars 11 and similar intermediate bars 11, whereby said frame is divided into rectangular sections that approximately correspond to the mouth area of the vats with which they are arranged to register.

For the purposeof lowering and raising the several tiers of trays into and out of the vats, an elevator is provided, which elevator comprises frame sections A, B, C,

that are arranged to be submerged into and lifted from the respective vats A, B, C. These frame sections of the elevator are each suspended from a lid 12, and the bottom of the several frames is formed by sets of rollers 13 the same constituting a skeleton support, which rollers, when the elevator is lifted, are stopped upon a plane common to the receiving and delivery table rollers 7 7, and also the conveyer rolls 9. hen the elevator is lowered, as shown in Figs. 1 and 2, the lid 12 rests upon side flanges of the tank 1, to thus form a closure for the entire series of vats. The vertical lift of the lid and elevator to the position indicated by dotted in s in F g- .7 i h ked by st p-pins 14 that project from sets of supporting columns 15, which columns extend upward from the tank sides and are connected by crossgirders 15.

The elevator is raised and lowered by sets of cables a, a. Ends of the cables at are connected to one side of the lid extending up ward therefrom and over pulleys 16, which pulleys are secured to a shaft 1'? that is journaled in bearings with which the crossgirders 15 are provided. The said cables extend downward from the pulleys and have their opposite ends secured to drums 18, the same being mounted upon a positively driven shaft 19 that is journaled in boxes secured to the adjacent set of supporting columns. The other set of cables (1 have ends secured to the opposite sides of the lids 12, from which points they pass upwardly and over pulleys 16 and from thence stretches of the cable extend across the machine and over other pulleys 16" that are carried by the shaft 17 from which latter pulleys the said cables pass to sets of drums 18 that are secured to the drive shaft 19.

The drive-shaft 19 receives its motion from a counter-shaft 19 through a pinion 20 carried thereby, which pinion meshes with a gear-wheel 20' that is secured to said driveshaft. The counter-shaft 19 is, in turn, driven by an arbor 21 through a worm gear connection, the arbor being mounted in a suitable pillow-block and also carries a pulley 22, that is driven in either direction by a suitable belt connection from a source of power, not shown, and a suitable reversing mechanism, all of which gear transmission forms no part of my invention.

The receiving end of the conveyer frame is provided with weights 23 and suitable cable connections, which connections pass over guide-pulleys 28 that are mounted upon the receiving table. This weight connection with the conveyer serves to normally hold the same in its extreme rearward position over the receiving table, as shown in Fig. 1, rearward movement of said conveyerframe being limited by stops 2 1 that project from said table. The forward end of the conveyor frame is connected to cables 25, the opposite ends of which cables are wound about and secured to drums 26, the same being mounted upon a crankshaft 27 that is suitably j ournaled in frame members of the delivery table 6.

Assuming that the parts are in the position shown in Fig. 1 and that each vat contains its quota of trays carrying the bottled product to be sterilized, it is apparent that the product contained in the first vat A will be preheated, while that contained in the vat B will be pasteurized and the product contained in the vat G in the meantime will be cooled. Hence after a predetermined interval, while the process of sterilization is taking place the operator places a tier of trays containing the raw nroduct upon the receiving table 5, the lower tray of which tier is nested within the rear section of the conveyer. After the bottled products have been submerged for the proper interval of time the operator manipulates the power transmission mechanism, whereby drive shaft 19 is put into motion and the elevator,

through its cable connections with the sev eral drums upon said drive shaft, is lifted. In this position the bottom set of rollers of the various elevator sections are stopped in alinement with the receiving table rollers and rolls 9 or at a point where said elevator rolls will engage the lower face of the conveyer side bars 10.. \Vhen the parts are in this position motion of the drive-shaft 19 is stopped and thereafter the operator will impart rotation to the drum sheaves 26 which'are connected by cables to the con veyer. Owing to the cross-bar connections 11 and 11 of the conveyer frame it is apparent that when this forward movement of said conveyer takes place that these crossbars will engage the rear ends of the lower tray of each tier and hence that tier which is now resting upon the receiving table will be caused to travel forward upon the elevator rollers and over the pre-heating tank, while the tier which previously occupied the pre-heating tank will be moved forward to the pasteurizing tank. The tier of trays previously immersed in the pasteurizing vat will be then positioned over the cooling vat with the lower tray resting upon the rollers of that section of the elevator. Hence said trays will be pushed forward clear of the vat by the bar 11 upon the delivery table 6, their contents having passed through the complete pasteurizing process. The forward movement of the conveyer frame is limited by the engagement of its bar 11 with its stop 24: which projects from the table 6, as best shown in Fig. 1, it being understood that this stop checks movement of the conveyer, whereby the discharged tray or series of trays is delivered upon the rollers 7. This tier of trays is thereafter removed by the operator and when the parts again assume the position in Fig. 1 a fresh tray is supplied to the receiving table. Thus the process of pasteurization is continuously maintained in a series of successive steps which are controlled by the minimum eX- penditure of labor.

I claim:

1. A pasteurizing apparatus comprising a series of tanks, tables extending from each end tank, anti friction rollers mounted within the tables, a reciprocative conveyer adapted to travel over the rollers of the rear end tables, the conveyer comprising bars having cross-bar connections forming partitions that correspond in number to the vats, guides for the conveyer, a vertically reciprocative lid for the vats, frames suspended fro-m the lid adapted to enter the vats and constitute elevators for material to be pasteurized, roller bottoms for the elevators adapted to be alined with the before mentioned rollerequipped tables, means for raising and lowering the lid and elevators, and means for imparting reciprocative motion to the conveyer.

2. A pasteurizlng apparatus compris ng a tank provided with partitions forming Separate vats adapted to contain water at various predetermined degrees of tempera ture, a receiving table in connection with the first vat of the series and a delivery table in connection with the last vat of the series, anti-friction rollers mounted upon the tables, vessel-receiving trays arranged to be initially supported upon the receiving table, a reciprocative conveyer comprising sidebars connected by a series of transverse bars forming sections that correspond with the number of vats, the side-bars being adapted to travel over the rollers of the receiving table, guides for said side-bars, a vertically reciprocative lid arranged to rest upon the tank and form a closure for the entire series of vats, skeleton frames suspended from the lidconstituting elevators for the trays,aseries of rollers carried by the skeleton frames to form bottoms for the support of said trays, means for raising the lid and elevators whereby the bottom rollers are brought into horizontal alinement with the receiving and delivery table rollers, and means for moving the conveyer forward and backward a distance equal to the length of a vat.

3. A pasteurizing apparatus comprising a series of tanks, tables extending from each end tank, a reciprocative conveyer adapted to travel over the rear end table, the conveyer comprising bars having crossbar connections forming partitions that correspond in number to the vats, guides for the conveyer, a vertically reciprocative lid for the vats, frames suspended from the lid adapted to enter the vats and constitute elevators for material to be pasteurized, skeleton bottoms for the elevators adapted to be alined with the before mentioned tables, means for raising and lowering the lid and elevators, and means for imparting reciprocative motion to the conveyer.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

FREDERICK GETTELMAN.

Witnesses W'. A. GETTELMAN, CHAS. MOLLENHAUER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

